Connector for electrical conductors.



4 Patented Oct. .20 1908..

F B COOK CONNECTOR POR ELECTRICAL ONDUCTRS AFPLUTI FILED APB Z 1908 v w ,qqfwz'nnw y WV,

Inventar Mmm Wi i ne :ses:

' heretofore 'citizen of the United UNiTED sTATEs PATENT g OFFICE FRANK B. 000K; or cuando,Y nii-.mois

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Specication o! Lettera Patent.

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ToI all whom 'it my concern:

Be it knownthat I, FRANK B.. COOK, a States of America, residing at Chicago, Cook county, Illinois, have invented a new and useful Connector for Electrical Conductors, of which the f ollowing is a specification, had to -the accompanying trating same.

This invention relates to connectors for electrical conductors, or for other ropesor strands.

The principal objects of this invention are to provide an improved connector of the character herein set forth, creased holding power overother connectors ina e; to provide an improved connector for making good electrical connection between twol electrical conductors; and to provide'a simplified construction in reference being drawings, illussuch a connector.

Other objects will be apparent from the following specification.

In this present invention, for connecting a pair of stranded ropes o' cables together, I provide a sleeve surrounding the ends of the ropes or cables, which sleeve has a taper from each end thereof toward the center, the taper increasing from the ends toward the center, in combination with wedges which areinserted between the ends of the strands of the ropes or cables, strands vout to. fit the tapered portions of the sleeve, the wedges for either rope or.

cable being separate from the wedges for the other rope oi' cable, whereby the enlarged end ortions of the i'opes or cables are practica ly permanently enlarged apart from each other so that they are prevented from pulling out of the sleeve upon excessive tension therealong. In addition to this I also provide means on the sleeve for tightening the tapered portions thereof against the engrged ends of the ropes or cables.

' `or connecting the ends of two solidvcylindrical conductors together, I provide a sleeve Vwith a straight bore therethrou li and means on the exterior portion o f tie sleeve for clamping saine tightly around the c lindrical conductors.

:Ilwill now describe my invention more in detail, by reference to the accompanying drawingsinwhich Y Figure l is of i'ny connector, showing' a pair of stranded to wedge the 'said' the respective ropes. or

a side elevation of` one forni or cables connected together therein;

`F 1g. -2 is `an end view of F a ongtudinal crosssectiona connection shown in F' 1, taken'o ni'lilnek of Fig. 1, 'showing .t e center strand-o ,each ofthe stranded ropes or cables cutoff and a single wed .inserted in the cndf'io each `of the stran ed ropes or cables; Fig. 4 is an end view of one of the stranded es or cables of Fig. 3, showing a single w f inserted between the exterior strands of rope or cable; Fig. 5 shows a m of `the arrangement shown in Fig. 3, `in' which modification a number of wedgeshaped pins are inserted between the several strands of each of the stranded ro vory` cables,ito enlarge the ends thereof, in this case the center strands of the ropes or:y being not cut off shorter .than strands thereof; Fig. 6 is an endview of one of the stranded ropes or cables shown in Fig. 5, showing the several lwedge-shaped ,pins inserted between the several str ands of thc rope or cablezaiid Fig. T is a lon i.- tiidinal cross-sectioinil view of another in itied forni' of my connector-,this forni beingl adapted for 'connecting the ends of a; pair of single strands or conductors together.'

Like characters refer to like parts in the` several figures. The sleeve 1 the inside thereof, as at Q 2, the sai taper increasing from the ends of theA sleeve toward -the center. in which taper the is' 1e pins 3 3 or the plurality of pins 4 l, and t iel ends of the strandsl 5 of thestr'anded ropes or cables 6 6 are inserted. preferably as shown in Figs. 3 and 5, the arrangement shown in Fig. 5 being adapted to t'into the` sleeve 1 shown in Fig. 3. In inserting these pins 3 3, or 4 4, and the'strandedropes `or. cables 6 6, into the sleeve 1, the pins are slightly started into the vends of the rope or. cables 6 6, and then the whole is inserte into the ends of the sleeve 1 to the positicln 4shown'vin Fig. 3, or in Fig. 5, the pins 'in cables 6 6 coming to; ether and'thereby pushing each other farther'. into the ends he ropes or cables 6 `6 the latter. are forced farther into the` sleeve 1, thus wedgiiig the strands 5 5 out into the "tapered portions of the sleeve 1 as shown Iii the arrangement shown in Fig. 3. the

center sii-'ands of the respective ropes or cables 6 6 are cnt ott` as shown at 7 7, Vto

is provided with a ta r on l'fFig. 3 1s View of the y odisea fthe other -are connected.

p shaped pins 3V 3 or 4 4. 'If th allow the large the ropes or cables w6"- 6 as.

shown. 4The exterior surface of the sleeve 1 is also tapered as at 8 8, to correspond with the tapered portions 2 2, the taperedport-ions 8 8 being threaded to accommodate nuts 9 9 which are also provided with tapered threads therein. The sleeve .1. split longitudinally'from one end to the other, as shown at 10, to enableit to be squeezed around the ropes or cables 6 6; by the nuts 9 9. The middle portion of the exterior surface of the. sleeve 1 is preferably formed as a nut so as to be wrench.

When the ends of the cables 6 6, with the pins 3 3, or 4 4, therein, are inserted into the sleeve 1 as hereinbefore described, the nuts 9 9 aret'ightened up on the sleeve 1 so sto clamp the interior tapered portions ,of theI sleevel tightly around the enlarged end portionsof the ropes or cables 6 6, the split 10 permitting the sleeve l to contract lsomewhat and thereb tightly grip the ends of the ropes or cablbs 6 6. `This tightly clamps the. ends of the ro es or les r6 6 within the sleeve l and "t ereby lstranded ropes or i makes good electrical connection between the cables 6 6, the said ropes or cables6 6 not being permitted to slip out ofthe ends of the sleeye 1 under an excessive tension there- 0in-'because of being enlargedby the` wedgee sleeve 1 is not clamped tightlyaround portions of'the ropes or cables 6 6 at the beginning, there may bea slight slipping of is produced the pins 3 3crvr move with the strands 5 5 of the ropes or cables 6 6 and soon tighten the enlarged end portions of the latter within the inner tapered portions-of the sleeve 1. Upon an excessive pull 'on the ropes or cables. 6 6 the nuts 9 9 prevent the sleeve 1 from' spreading and consequently being ruptured.

'Where two 'single strands or conductors together as shown in Fim 7, the sleeve 1 1 strands or conductors 13 13, the sleeve 11.l being'split longitudinally from one end to theother the Fig. 1; This construction provides a connector which exerts a great holding power on thefends of the strands or 'conductors readily -grasped by al vtudinally along the enlarged.

'between the strands A, subscribe my name in the same as the sleeve shown in4 13 13 and makes a good electrical connection between the conductors -13 13.

I do not wish to limit. this invention to all of the particular details of construction herein shown, as many modifications of same may be made without departing from the scope o f the appended claims.

at I claim as my invention is: y p

1. A connector of the character described comprising a one-piece sleeve adapted to receive the ends of the strands to be connected, the exterior surface of the lsleeve being tapered .from the center toward each end and threaded, the sleeve being split longitudinally along yone side only, and a nut for each end of the. sleeve adapted to be tightened up thereon whereby the sleeve tightly grips the said strands. l

'2. A connector of the 'character described comprising a one-piece sleeve adapted to receive the ends of lthe ropes or cables to he connected,`the sleeve being tapered from the middle toward theends at both the exterior and interior surfaces, a. pair of stranded ropes or cables inserted into the end thereof and both being inserted into the opposite ends of the sleeve whereby the said wedging means wedges the strands of each rope `or cable outwardly to fit the interior tapered portions ofthe sleeve, the exterior tapered portions of the sleeve being threaded, the sleeve being split longione side only, and a nut for each of the tapered threaded portions adapted/to betightened up thereon whereby the sleeve is. caused to tightly grip the enlarged end portions of the ropes or cables to prevent the latter. from pulling ont of the sleeve.

3. A Aconnector of the character described comprising a one-piece sleeve the interior portion of which is tapered from the center toward the ends, a pair of stranded ropes or cables adapted to be inserted into the opposite ends of the sleeve, wedging means placed of the ropesor cables whereby the insertion of the latter into the sleeve from the opposite ends thereof forces the said \means strands of the ropes or cables to enlarge the ends ofthe latter to lit thetapers inv the sleeve, and means for holding the sleeve in place around 't e ropes .or cables for purposes substantially as described.

As inventor of the foregoing I hereunto presenceof two this 30th day of VFRANK B. cooK.

subscribing witnesses, hlarch, 1908.

y Witnesses: y

FREDERICK R. PARKER, C.' C. NEWBURN.

farther inl between the i 

